37,039 research outputs found
LONG TERM SUCCESS OF ENDOVASCULAR TREATMENT OF BENIGN SUPERIOR VENA CAVA OCCLUSION WITH CHYLOTHORAX AND CHYLOPERICARDIUM
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ANEVRYSMES DE LA CAROTIDE INTERNE EXTRA-CRANIENNE. A PROPOS DE DEU X CAS CLINIQUES
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Expert Opinion on Hostile Neck Definition in Endovascular Treatment of Abdominal Aortic Aneurysms (a Delphi Consensus)
No full textEndovascular aneurysm repair (EVAR) is currently accepted as an alternative to open repair for the treatment of abdominal aortic aneurysm (AAA). Approximately 40-60% of AAA patients are not considered eligible for EVAR due to unfavorable anatomy. There is currently no consensus on the definition of "hostile" aortic neck for EVAR procedure
Effects of Venous Angioplasty on Cerebral Lesions in Multiple Sclerosis: Expanded Analysis of the Brave Dreams Double-Blind, Sham-Controlled Randomized Trial
No full textPurpose: To evaluate if jugular vein flow restoration in various venographic defects indicative of chronic cerebrospinal venous insufficiency (CCSVI) in multiple sclerosis (MS) patients can have positive effects on cerebral lesions identified using magnetic resonance imaging (MRI). Materials and Methods: The Brave Dreams trial ( identifier NCT01371760) was a multicenter, randomized, parallel group, double-blind, sham-controlled trial to assess the efficacy of jugular venoplasty in MS patients with CCSVI. Between August 2012 and March 2016, 130 patients (mean age 39.9 +/- 10.6 years; 81 women) with relapsing/remitting (n=115) or secondary/progressive (n=15) MS were randomized 2:1 to venography plus angioplasty (n=86) or venography (sham; n=44). Patients and study personnel (except the interventionist) were masked to treatment assignment. MRI data acquired at 6 and 12 months after randomization were compared to the preoperative scan for new and/or >30% enlargement of T2 lesions plus new gadolinium enhancement of pre-existing lesions. The relative risks (RR) with 95% confidence interval (CI) were estimated and compared. In a secondary assessment, venograms of patients who underwent venous angioplasty were graded as "favorable" (n=38) or "unfavorable" (n=30) for dilation according to the Giaquinta grading system by 4 investigators blinded to outcomes. These subgroups were also compared. Results: Of the 130 patients enrolled, 125 (96%) completed the 12-month MRI follow-up. Analysis showed that the likelihood of being free of new cerebral lesions at 1 year was significantly higher after venoplasty compared to the sham group (RR 1.42, 95% CI 1.00 to 2.01, p=0.032). Patients with favorable venograms had a significantly higher probability of being free of new cerebral lesions than patients with unfavorable venograms (RR 1.82, 95% CI 1.17 to 2.83, p=0.005) or patients in the sham arm (RR 1.66, 95% CI 1.16 to 2.37, p=0.005). Conclusion: Expanded analysis of the Brave Dreams data that included secondary/progressive MS patients in addition to the relapsing/remitting patients analyzed previously showed that venoplasty decreases new cerebral lesions at 1 year. Secondary analysis confirmed the efficacy of the Giaquinta grading system in selecting patients appropriate for venoplasty who were more likely to be free from accumulation of new cerebral lesions at MRI
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Prime values of and , quadratic
No full textWe prove an asymptotic formula for primes of the shape with integers and of the shape with prime. Here is a binary quadratic form with integer coefficients, irreducible over and has no local obstructions. This refines the seminal work of Friedlander and Iwaniec on primes of the form and Heath-Brown and Li on primes of the form , as well as earlier work of the author with Lam and Schindler on primes of the form with a positive definite form.45 page
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Erratum: Unibody endograft using AFX 2 for less invasive and faster endovascular aortic repair: Protocol for a multicenter nonrandomized study (JMIR Research Protocols (2020) 9:4 (e16959) DOI: 10.2196/16959)
No full textIn “Unibody Endograft Using AFX 2 for Less Invasive and Faster Endovascular Aortic Repair: Protocol for a Multicenter Nonrandomized Study” (JMIR Res Protoc 2020;9(4):e16959) there were two errors in the Collaborators List. The collaborator Sonia Ronchey was inadvertently not included in the collaborator list. Additionally, the collaborator name Pietro Volpet should have been listed as Pietro Volpe. The Collaborator List was initially published as follows: The LIVE Study Collaborators are as follows: Giancarlo Accarino; Dimitri Apostolou; Guido Bajardi; Stefano Bartoli; Filippo Benedetto; Franco Briolini; Stefano Camparini; Emidio Costantini; Giovanni Credi; Ruggiero Curci; Raffaello Dallatana; Gianmarco de Donato; Carlo Dionisi; Vittorio Dorrucci; Leonardo Ercolini; Gianfranco Fadda; Mauro Ferrari; Loris Flora; Andrea Gaggiano; Roberto Gattuso; Franco Grego; Sabrina Grimaldi; Giovanni Impedovo; Arnaldo Ippoliti; Antonio Jannello; Sergio Losa; Nicola Mangialardi; Isaac Martinez; Javier Martinez; Stefano Michelagnoli; Giancarlo Palasciano; Vincenzo Palazzo; Domenico Palombo; Raffaele Pulli; Giovanni Rossi; Antonino Scolaro; Gianantonio Simoni; Francesco Spinelli; Francesco Talarico; Maurizio Taurino; Marco Trogolo; Nicola Tusini; Gianfranco Veraldi; Pier Francesco Veroux; Gennaro Vigliotti; and Pietro Volpet. The Collaborator List has now been updated to the following: The LIVE Study Collaborators are as follows: Giancarlo Accarino; Dimitri Apostolou; Guido Bajardi; Stefano Bartoli; Filippo Benedetto; Franco Briolini; Stefano Camparini; Emidio Costantini; Giovanni Credi; Ruggiero Curci; Raffaello Dallatana; Gianmarco de Donato; Carlo Dionisi; Vittorio Dorrucci; Leonardo Ercolini; Gianfranco Fadda; Mauro Ferrari; Loris Flora; Andrea Gaggiano; Roberto Gattuso; Franco Grego; Sabrina Grimaldi; Giovanni Impedovo; Arnaldo Ippoliti; Antonio Jannello; Sergio Losa; Nicola Mangialardi; Isaac Martinez; Javier Martinez; Stefano Michelagnoli; Giancarlo Palasciano; Vincenzo Palazzo; Domenico Palombo; Raffaele Pulli; Sonia Ronchey; Giovanni Rossi; Antonino Scolaro; Gianantonio Simoni; Francesco Spinelli; Francesco Talarico; Maurizio Taurino; Marco Trogolo; Nicola Tusini; Gianfranco Veraldi; Pier Francesco Veroux; Gennaro Vigliotti; and Pietro Volpe. The correction will appear in the online version of the paper on the JMIR website on June 24, 2020, together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories
K. F. C. Rose, The Date and Author of the Satyricon. With an Introduction by J. P. Sullivan
No full textVerdière Raoul. K. F. C. Rose, The Date and Author of the Satyricon. With an Introduction by J. P. Sullivan. In: L'antiquité classique, Tome 42, fasc. 1, 1973. pp. 279-280
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